Aluminate cement and quicklime-based static blasting agent and preparation method thereof

A technology of aluminate cement and static blasting agent, which is applied in the field of building material admixtures, can solve the problems of long expansion start time, difficult expansion process, long expansion period, etc., and achieves early expansion start time, low production cost, and expansion period. short effect

Active Publication Date: 2022-03-01
焦作市红石环保科技有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of aluminate cement and quicklime-based static blasting agent and its preparation method, to solve the problem of expansion of existing static blasting agent Problems such as long time, long expansion period, and difficulty in controlling the expansion process

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  • Aluminate cement and quicklime-based static blasting agent and preparation method thereof
  • Aluminate cement and quicklime-based static blasting agent and preparation method thereof
  • Aluminate cement and quicklime-based static blasting agent and preparation method thereof

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preparation example Construction

[0036] Such asfigure 1 and figure 2 Shown, the present invention also proposes a kind of preparation method of aluminate cement and quicklime-based static blasting agent, and preparation method comprises the following steps:

[0037] Add water reducing agent, sodium sulfate, aluminum sulfate, sodium carbonate and sodium gluconate into the mixer according to the ratio and mix evenly. Refer to the national standard GB 8076-2008 "Concrete Admixtures" for water reducing rate and setting time test method, after passing the test, the composite admixture is obtained;

[0038] Add aluminate cement, Portland cement, quicklime and composite admixture into the mixer (or mixer) according to the ratio, and stir until uniform. Refer to the article "Experimental Research on the Expansion Mechanical Properties of Static Blasting Agents" in "Coal Mine Safety" "(2019,50(3):9-12), the static blasting agent powder is obtained after passing the inspection;

[0039] The static blasting agent pow...

Embodiment 1

[0051] The aluminate cement of the present embodiment and quicklime-based static blasting agent, the preparation method is:

[0052] (1) Add 5000g of water reducer, 1500g of sodium sulfate, 1500g of aluminum sulfate, 1500g of sodium carbonate, and 500g of sodium gluconate into a mixer and mix evenly. After passing the test, a composite admixture is obtained;

[0053] (2) 2500g of aluminate cement, 2000g of Portland cement, 5000g of quicklime, and 500g of composite admixture are stirred in a mixer until they are uniform, and static blasting agent powder is obtained after passing the test;

[0054] (3) Add 10000g of static blasting agent powder to 3000g of water and stir evenly to obtain static blasting agent.

[0055] The construction is carried out by grouting pump or self-flow, referring to the test method in the article "Experimental Research on the Expansion Mechanical Properties of Static Blasting Agent" (2019,50(3):9-12) in "Coal Mine Safety", after testing, it is obtaine...

Embodiment 2

[0063] This example studies the influence of the amount of composite admixture in the raw material composition of the static blasting agent on the expansion performance. Specifically, the amount of fixed aluminate cement is 2500g, Portland cement is 2500g, quicklime is 5000g, and water is 3500g. The amount of additives (that is, the mass percentage of the total mass of aluminate cement, Portland cement and quicklime) is 0%, 2%, 4%, 6%, 8%, 10% (corresponding to the number 1, 2, 3, 4, 5, 6), the impact on the performance of static blasting agent, wherein, according to parts by weight, the composite admixture includes 4000 parts of water reducer, 2000 parts of sodium sulfate, 1500 parts of aluminum sulfate, carbonic acid Sodium 2000 parts, sodium gluconate 500 parts. The raw material composition and corresponding expansion performance data of the static blasting agent in this embodiment are shown in Table 2.

[0064] The influence of the raw material composition of table 2 stat...

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Abstract

The invention belongs to the technical field of building material admixtures, and particularly relates to an aluminate cement and quicklime-based static blasting agent and a preparation method thereof. The static blasting agent comprises aluminate cement, Portland cement, quick lime, a composite additive and water, wherein the weight ratio of the components in the static blasting agent is as follows: the aluminate cement: the Portland cement: the quick lime: the composite additive: the water is (10-30): (10-30): (40-60): (4-8): (25-40); the composite admixture comprises the following components in parts by weight: 40-60 parts of a water reducing agent, 10-20 parts of anhydrous sodium sulphate, 10-20 parts of aluminum sulfate, 10-20 parts of sodium carbonate and 1-10 parts of sodium gluconate. The static blasting agent disclosed by the invention has the characteristics of early expansion starting time, short expansion period, large expansion stress, adjustable expansion speed, low reaction temperature and no generation of toxic and harmful gas.

Description

technical field [0001] The invention belongs to the technical field of building material admixtures, in particular to an aluminate cement and quicklime-based static blasting agent and a preparation method thereof. Background technique [0002] Static blasting technology can be applied to the demolition of urban buildings, rock crushing in the mining industry, etc., especially when the surrounding environment is very complicated and conventional blasting construction cannot be carried out, it can effectively avoid blasting vibration, noise, Flying stones, shock waves, etc. have adverse effects on the surrounding environment. At present, there are mainly two types of static blasting construction technology, one is the new mechanized static blasting construction technology; the other is the static blasting agent construction technology, because the current static blasting agent has a long expansion period and the expansion process is not easy to control, etc. problems, making ...

Claims

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Application Information

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IPC IPC(8): C04B28/12
CPCC04B28/12C04B7/02C04B7/32C04B2103/302C04B22/147C04B22/148C04B22/10C04B24/10
Inventor丁涛李毅杨青枝
Owner焦作市红石环保科技有限公司